What are the health effects of Spirulina (Arthrospira platensis)?

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Last updated: February 8, 2025View editorial policy

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From the Research

Health Benefits of Spirulina

  • Spirulina is known to have various promising effects on the prevention of cancer, oxidative stress, obesity, diabetes, cardiovascular diseases, and anemia 1
  • It also plays a positive role in treating muscular cramps 1
  • Spirulina has antioxidant, anti-inflammatory, immunomodulation, and insulin-sensitizing properties 2
  • It has positive effects on body composition, especially in overweight and obese subjects 2
  • Spirulina appears to be effective in improving aerobic fitness, especially in untrained and moderately trained subjects 2
  • It may improve strength and power performance, despite minor or no significant effects in highly trained subjects 2
  • Spirulina improves antioxidant status, prevents and accelerates the recovery of exercise-induced lipid peroxidation, muscle damage, and inflammation in trained and untrained subjects 2
  • It reduces body weight, body mass index, and waist circumference, with a potential dose-dependent effect 3
  • Spirulina decreases interleukin 6, an important biomarker of body inflammation, and lowers insulin resistance 3
  • It reduces triglycerides, low-density lipoprotein cholesterol, and increases high-density lipoprotein cholesterol 3
  • Spirulina reduces fasting blood sugar and post-prandial blood sugar and increases insulin sensitivity 3
  • It has antihypertensive, antidiabetic, and antihyperlipidemic properties, which can help prevent and manage risk factors associated with cardiovascular disease (CVD) 4
  • Spirulina supports weight loss and improves blood lipids, including reducing body fat, waist circumference, body mass index, and appetite 5

Adverse Effects of Spirulina

  • Spirulina may have some adverse effects due to the toxins (microcystins, β-methylamino-L-alanine (BMAA)) produced by it, which might contribute to acute poisoning, cancer, liver damage, as well as gastrointestinal disturbances 1
  • Long-term consumption of Spirulina may lead to the pathogenesis of Alzheimer's disease and Parkinson's disease 1

Recommended Dosage and Nutritional Value

  • The safety-recommended dosage of Spirulina is approximately 3-10 g/d for adults 1
  • Spirulina has a high nutritional content, including 60-70% protein, essential amino acids, vitamins, minerals, and bioactive compounds 2
  • It is rich in essential fatty acids, antioxidants, and pigments such as chlorophyll A and phycobiliproteins (C-phycocyanin, allophycocyanin, and β-carotene) 1, 2

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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